Sharp CD-XP500A Service Manual page 25

AY
9 8 7 6 5 4 3 2 1
23 22 21 20 19 18 17 16 15 14 13 12 11 10
82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98
1
2
–20dBATT
OAD
1 VDD
SUB-CE/DSA_STB
3
4
5
6 REC/PLAY
CD RESOUT
ST3/S17
ST2/S18
ST1/S19
ST0/S20
1
ST
OP LED IC701
EV_PLY_LED
IX0532AW
OR_PLY_LED
SYSTEM
MICROCOMPUTER
U_LED1
DS READY/ESS DO
DS RDCL/ESS DI
DS RDDA/ESS STB
T2_PLAY SW/
28
DS RST/ESS ACK
FPA/FPB SW
52 29 PROTECT
PEG POWER T1 RUN
T2 RUN LVL_DET
SC NO SW V_ONLY 51 30
ARAOKE LATCH
DISC_NO SW/
C SW
DSA DATA
C_SW
TUN SM
DSA_ACK
49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
+B
+B
R765
R780
4.7K
10K
+B
R775
R761
10K
10K
R776
R768
10K
10K
LED701
SLR342VCJ
R767
JOG701
10K
JOG VOLUME
R766
10K
R
7
R795
1.5
C701
1/50
C703
C702
0.022
220/10
99 100
+B
1
R763 1K
2
3
R702 1K
T-BIAS
4
R703 1K
T_T1/T2
5
R704 1K
6
R705 1K
7
R706 1K
WRQ
8
R707 1K
SPAN
9
R708 1K
RESET
10
C704
X2
11
15P
C705
X1
12
18P
XL701
VPP/IC
13
4.194304 MHz
C721
XT2
14
0.022
R769 1K
DRF
15
VDD
16
R709 1K
CD CLK
17
R710 1K
CD DI
18
R711 1K
CD DO
19
R712 1K
CD CE 20
R713 1K
CE
21
R714 1K
CLK
22
R715 1K
DI
23
R716 1K
DO
24
AVSS
25
26
R717
27
100
28
R739
29
1K
30
C720
0.022
R759
5.6K
R809
47K
R773
10K
+B
+B
KEY 2
KEY 1
KEY 0
8
Figure 25 SCHEMATIC DIAGRAM (8/11)
+B
5V BACK UP
+B
+B
RD19 RD20
RD21
680 820
1K
SW723
DISC SKIP
RD10 RD11 RD12
680 820 1K
SW711 SW712
SW713
CD TUNER
TAPE
(BAND)
RD01 RD02
680 820
SW701 SW702 SW703
ON/ FAST REWIND/ FAST FORWARD/
STAND-BY PRESET DOWN PRESET UP
9 10
– 25 –
CD-XP500A/CD-XP500W
HEADPHONES
PWB-B2
+B
M_+13V
1
2
SP_RLY
3
R-CH
4
GND
5
L-CH
CNP705
+B
D712
DS1SS133
UN_SW5V
D713
DS1SS133
+B
L701
100µH
RX701
D714
REMOTE
DS1SS133
SENSOR
RESET
R781
Q709
47K
KRC102 M
2 3
1 2 3
C715 R782
1
0.01 100K
RD22 RD23
1.5K 2.2K
SW724 SW725 SW726
OPEN/CLOSE EQUALIZER X-BASS/DEMO
RD13 RD14
RD15 RD16 RD17
1.5K 2.2K
2.7K 3.9K 5.6K
SW715 SW716 SW717
SW714 SW718
TIMER/ TUNING/ REC
VIDEO/ MEMORY/
SLEEP TIME UP PAUSE TIME DOWN
AUX SET
RD03 RD04 RD05 RD06
1K 1.5K 2.2K 2.7K
SW704 SW705 SW706 SW707
STOP PLAY REVERSE REVERSE
PLAY MODE
11
JK701
HEADPHONES
FM SIGNAL
DISC_NO SW
10 10
O/C_SW
9 9
CLAMP SW
8 8
RES OUT
7 7
CD CLK
6 6
CD DI
5 5
CD DO
4 4
CD CE
3 3
DRF
2 2
WRQ(DSP)
1 1
VF2
1 1
–VF
2 2
P_IN
3 3
VF1
4 4
UNSW5.6
5 5
CNS705
+B
+B
R783
100
+B
C717
47/25
RD18
10K
SW719
SW720
TUNING/
CLOCK
12